Reorganize "concept" pages in QtQuick docs

This removes concepts/topic.qdoc and move this content into individual
concept topic pages under individual directories for each concept to
avoid having a really long "concepts" index page.

This change also:
- Moves components.qdoc ("Defining reusable components") into the
 appdevguide/ since it's not specific to QtQuick features - it's more
 about how to use a QtQml feature to build QML apps.
- Moves the part of qtqml/doc/src/cppintegration/data.qdoc that
 discusses how to use C++ models with QtQuick views into
 quick/doc/src/concepts/modelviewsdata/data-cppmodels.qdoc.

Change-Id: Id18a1d56acaaac41714c13cbc94bb3b80f337355
Reviewed-by: Chris Adams <christopher.adams@nokia.com>

1 files changed, 55 insertions, 0 deletions

diff --git a/src/quick/doc/src/concepts/modelviewsdata/topic.qdoc b/src/quick/doc/src/concepts/modelviewsdata/topic.qdoc
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+/****************************************************************************
+**
+** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/
+**
+** This file is part of the documentation of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:FDL$
+** GNU Free Documentation License
+** Alternatively, this file may be used under the terms of the GNU Free
+** Documentation License version 1.3 as published by the Free Software
+** Foundation and appearing in the file included in the packaging of
+** this file.
+**
+** Other Usage
+** Alternatively, this file may be used in accordance with the terms
+** and conditions contained in a signed written agreement between you
+** and Nokia.
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+/*!
+\page qtquick-modelviewsdata-topic.html
+\title Important Concepts In Qt Quick - Data - Models, Views and Data Storage
+\brief Overview of the data, model and view concepts
+
+Most applications will have data that needs to be displayed to the user.  That
+data might come from a variety of sources: network sources, local files, and
+databases are all common sources of data.
+
+\section1 Models and Views
+
+It is often advantageous to show similar data in a similar manner, within an
+application, and this gives rise to the idea of having a model which contains
+data, and a view which displays the data.  The view will display a delegate
+for every datum in the model.
+
+For information about how the Model/View paradigm is implemented in Qt Quick,
+see the page titled \l{qtquick-modelviewsdata-modelview.html}
+{Models and Views in Qt Quick}.
+
+\section1 Data Storage and Access
+
+Databases are commonly used to store information in applications.  Qt Quick
+provides simplified access to relational databases via the
+\l{qtquick-modelviewsdata-localstorage.html}{Qt Quick local storage module}.
+
+*/
+